Chair seat



FIG. 1 is a front perspective view of a chair seat showing my newdesign;

FIG. 2 is a front elevational view of the chair seat shown in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being amirror image thereof; and,

FIG. 5 is a rear elevational view thereof.

The ornamental design for a chair seat, as shown and described.